Barker, Stephen Francis. The elements of logic / Stephen F. Barker. - 6th ed. - xv, 291 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0072832355 (alk. paper) LCCN: 2002107177 Subjects--Topical Terms: Logic. LC Class. No.: BC108 / .B25 2003 Dewey Class. No.: 160/B244